package com.controller;

import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.internal.util.AlipaySignature;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.pojo.GroupList;
import com.pojo.GroupOrder;
import com.service.GroupListService;
import com.service.GroupOrderService;
import com.util.AlipayConfig;
import com.util.ServerResponse;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;

import javax.annotation.PostConstruct;
import javax.servlet.http.HttpServletRequest;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

///**
// * Created by Administrator on 2020/4/8 0008.
// */
@Api(tags = "团购订单API")
@Controller
@RequestMapping(value = "/order")
public class GroupOrderController {
    @Autowired
    private GroupOrderService groupOrderService;
    @Autowired
    private GroupListService groupListService;
    @Autowired
   private StringRedisTemplate redisTemplate;
    private static ConcurrentHashMap<String,Boolean> stock=new ConcurrentHashMap<>();

   private static ConcurrentHashMap getStock(){
        return stock;
    }
    @PostConstruct
    public void init(){
        ServerResponse allsr = groupListService.getAll();
        List<GroupList> groups = (List<GroupList>)allsr.getData();
        for (GroupList group:groups){
            if (null!=group.getGroupAll()&&null!=group.getGroupCount()){
                int remaining  = group.getGroupAll() - group.getGroupCount();
                redisTemplate.opsForValue().set("group:"+group.getGroupId(),remaining+"");
                System.out.println("group:"+group.getGroupId()+"总共的库存量："+remaining+"");
            }
       }
    }

   @ApiOperation(value ="提交订单",notes ="" )
    @PostMapping("/groupOrder")
    @ResponseBody
   public ServerResponse submitOrder(GroupOrder groupOrder){
        String groupName="group:"+groupOrder.getGroupId();
        if (stock.get(groupName)!=null){
           System.out.println("对不起没抢到，商品已强光");
           return ServerResponse.getDataFailed("对不起没抢到，商品已强光");
        }
        Long flag = redisTemplate.opsForValue().decrement(groupName);
        if (flag<0){
            stock.put(groupName,true);
            flag = redisTemplate.opsForValue().increment(groupName);
           System.out.println("对不起没抢到");
            return ServerResponse.getDataFailed("对不起没抢到");
       }else {
            try {
                System.out.println("抢到了");
                return groupOrderService.submitOrder(groupOrder);
            }catch (Exception e){
                System.out.println(e);
                redisTemplate.opsForValue().increment(groupName);
               System.out.println("订单创建失败");
              return ServerResponse.getDataFailed("订单创建失败");
          }
      }
    }
    //根据user的id查询订单以及订单的状态
    @GetMapping("/getOrder/{id}")
    @ResponseBody
    public ServerResponse getOrder(@PathVariable("id")Integer userId){
        return   groupOrderService.getByUserId(userId);

    }

//    @ApiOperation(value ="支付订单",notes ="" )
//    @PostMapping("/payOrder")
//    @ResponseBody
//    ServerResponse payOrder(Long orderNum){
//        return groupOrderService.payOrder(orderNum);
//    }

    @ApiOperation(value ="取消订单",notes ="" )
    @PostMapping("/casubmitOrderncelOrder")
    @ResponseBody
    ServerResponse cancelOrder(Long orderNum){
        return groupOrderService.cancelOrder(orderNum);
    }

    @ApiOperation(value ="处理超时订单",notes ="" )
    @PostMapping("/scheduledCancel")
    @ResponseBody
    @Scheduled(fixedRate =120*1000) //120秒执行一次
    ServerResponse scheduledCancel(){
        ServerResponse serverResponse = groupOrderService.scheduledCancel();
        return serverResponse;
    }
    /**
     *
     *前往支付宝第三方网关进行支付
     */
    @PostMapping(value = "/goAlipay")
    @ResponseBody
    public String goAlipay(GroupOrder groupOrder, HttpServletRequest request, HttpServletRequest response) throws Exception {
        //获得初始化的AlipayClient
        AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id,
                AlipayConfig.merchant_private_key, "json", AlipayConfig.charset,
                AlipayConfig.alipay_public_key, AlipayConfig.sign_type);

        //设置请求参数
        AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();
        alipayRequest.setReturnUrl(AlipayConfig.return_url);
        alipayRequest.setNotifyUrl(AlipayConfig.notify_url);

        //商户订单号，商户网站订单系统中唯一订单号，必填
        String out_trade_no = groupOrder.getOrderNum().toString();
        //付款金额，必填
        String total_amount =groupOrder.getUnitPrice().toString();
        //订单名称，必填
        String subject =groupOrder.getOrderDescribe().toString();
        //商品描述，可空
        String body = "用户订购商品个数：" + groupOrder.getProdCount().toString();

        System.out.println("订单号:"+out_trade_no);
        System.out.println("付款金额:"+total_amount);
        System.out.println("订单名称:"+subject);
        System.out.println("商品描述:"+body);
        // 该笔订单允许的最晚付款时间，逾期将关闭交易。取值范围：1m～15d。m-分钟，h-小时，d-天，1c-当天（1c-当天的情况下，无论交易何时创建，都在0点关闭）。 该参数数值不接受小数点， 如 1.5h，可转换为 90m。
        String timeout_express = "15m";

        alipayRequest.setBizContent("{\"out_trade_no\":\""+ out_trade_no +"\","
                + "\"total_amount\":\""+ total_amount +"\","
                + "\"subject\":\""+ subject +"\","
                + "\"body\":\""+ body +"\","
                + "\"timeout_express\":\""+ timeout_express +"\","
                + "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");

        //请求
        String result = alipayClient.pageExecute(alipayRequest).getBody();
        System.out.println("result :"+result);
        return result;
    }

    /**
     *  支付宝同步通知页面
     */
    @RequestMapping(value = "/alipayReturnNotice")
    @ResponseBody
    public ModelAndView alipayReturnNotice(HttpServletRequest request, HttpServletRequest response) throws Exception {

        System.out.println("支付成功后，支付宝返回的所有的数据："+ request);
        //获取支付宝GET过来反馈信息
        Map<String,String> params = new HashMap<String,String>();
        Map<String,String[]> requestParams = request.getParameterMap();
        for (Iterator<String> iter = requestParams.keySet().iterator(); iter.hasNext();) {
            String name = (String) iter.next();
            System.out.println("return notice name:"+name);
            String[] values = (String[]) requestParams.get(name);
            String valueStr = "";
            for (int i = 0; i < values.length; i++) {
                valueStr = (i == values.length - 1) ? valueStr + values[i]
                        : valueStr + values[i] + ",";
            }
            //乱码解决，这段代码在出现乱码时使用
//			valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");
            params.put(name, valueStr);
        }
        System.out.println("params:"+params);
        boolean signVerified = AlipaySignature.rsaCheckV1(params, AlipayConfig.alipay_public_key, AlipayConfig.charset, AlipayConfig.sign_type); //调用SDK验证签名
        System.out.println("return notice signVerified:"+signVerified);
        //——请在这里编写您的程序（以下代码仅作参考）——
        if(signVerified) {
            //商户订单号
            String out_trade_no = new String(request.getParameter("out_trade_no").getBytes("ISO-8859-1"),"UTF-8");
            //支付宝交易号
            String trade_no = new String(request.getParameter("trade_no").getBytes("ISO-8859-1"),"UTF-8");
            //付款金额
            String total_amount = new String(request.getParameter("total_amount").getBytes("ISO-8859-1"),"UTF-8");

            System.out.println("return out_trade_no:"+out_trade_no);
            System.out.println("return trade_no:"+trade_no);
            System.out.println("return total_amount:"+total_amount);
            //	System.out.println("return productName:"+ product.getName());
            // 修改订单状态，改为 支付成功，已付款; 同时新增支付流水
            groupOrderService.updateOrderStatus(out_trade_no, trade_no, total_amount);
            GroupOrder order = groupOrderService.getOrderById(Long.valueOf(out_trade_no));
            GroupList group = groupListService.getOrderById(order.getGroupId());
            System.out.println("********************** 支付成功(支付宝同步通知) **********************");
            System.out.println("* 订单号:"+out_trade_no);
            System.out.println("* 支付宝交易号: "+trade_no);
            System.out.println("* 实付金额: "+ total_amount);
            System.out.println("* 购买产品: "+ group.getGroupName());
            System.out.println("***************************************************************");
            return new ModelAndView("redirect:http://localhost:8080/#/success/?flowNum="+trade_no);
        }else {
            System.out.println("支付, 验签失败...");
            return new ModelAndView("redirect:http://localhost:8080/#");
        }

    }

    /**
     *
     * @Description: 支付宝异步 通知页面
     *
     */
    @RequestMapping(value = "/alipayNotifyNotice")
    @ResponseBody
    public String alipayNotifyNotice(HttpServletRequest request, HttpServletRequest response) throws Exception {

        System.out.println("支付成功, 进入异步通知接口...");

        //获取支付宝POST过来反馈信息
        Map<String,String> params = new HashMap<String,String>();
        Map<String,String[]> requestParams = request.getParameterMap();
        for (Iterator<String> iter = requestParams.keySet().iterator(); iter.hasNext();) {
            String name = (String) iter.next();
            String[] values = (String[]) requestParams.get(name);
            String valueStr = "";
            for (int i = 0; i < values.length; i++) {
                valueStr = (i == values.length - 1) ? valueStr + values[i]
                        : valueStr + values[i] + ",";
            }
            //乱码解决，这段代码在出现乱码时使用
//			valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");
            params.put(name, valueStr);
        }

        boolean signVerified = AlipaySignature.rsaCheckV1(params, AlipayConfig.alipay_public_key, AlipayConfig.charset, AlipayConfig.sign_type); //调用SDK验证签名

        //——请在这里编写您的程序（以下代码仅作参考）——

		/* 实际验证过程建议商户务必添加以下校验：
		1、需要验证该通知数据中的out_trade_no是否为商户系统中创建的订单号，
		2、判断total_amount是否确实为该订单的实际金额（即商户订单创建时的金额），
		3、校验通知中的seller_id（或者seller_email) 是否为out_trade_no这笔单据的对应的操作方（有的时候，一个商户可能有多个seller_id/seller_email）
		4、验证app_id是否为该商户本身。
		*/
        if(signVerified) {//验证成功
            //商户订单号
            String out_trade_no = new String(request.getParameter("out_trade_no").getBytes("ISO-8859-1"),"UTF-8");

            //支付宝交易号
            String trade_no = new String(request.getParameter("trade_no").getBytes("ISO-8859-1"),"UTF-8");

            //交易状态
            String trade_status = new String(request.getParameter("trade_status").getBytes("ISO-8859-1"),"UTF-8");

            //付款金额
            String total_amount = new String(request.getParameter("total_amount").getBytes("ISO-8859-1"),"UTF-8");

            if(trade_status.equals("TRADE_FINISHED")){
                //判断该笔订单是否在商户网站中已经做过处理
                //如果没有做过处理，根据订单号（out_trade_no）在商户网站的订单系统中查到该笔订单的详细，并执行商户的业务程序
                //如果有做过处理，不执行商户的业务程序

                //注意： 尚自习的订单没有退款功能, 这个条件判断是进不来的, 所以此处不必写代码
                //退款日期超过可退款期限后（如三个月可退款），支付宝系统发送该交易状态通知
            }else if (trade_status.equals("TRADE_SUCCESS")){
                //判断该笔订单是否在商户网站中已经做过处理
                //如果没有做过处理，根据订单号（out_trade_no）在商户网站的订单系统中查到该笔订单的详细，并执行商户的业务程序
                //如果有做过处理，不执行商户的业务程序

                //注意：
                //付款完成后，支付宝系统发送该交易状态通知

                // 修改订单状态，改为 支付成功，已付款; 同时新增支付流水
                groupOrderService.updateOrderStatus(out_trade_no, trade_no, total_amount);


                GroupOrder order = groupOrderService.getOrderById(Long.valueOf(out_trade_no));
                GroupList group = groupListService.getOrderById(order.getGroupId());

                System.out.println("********************** 支付成功(支付宝同步通知) **********************");
                System.out.println("* 订单号:"+out_trade_no);
                System.out.println("* 支付宝交易号: "+trade_no);
                System.out.println("* 实付金额: "+ total_amount);
                System.out.println("* 购买产品: "+ group.getGroupName());
                System.out.println("***************************************************************");
            }
            System.out.println("支付成功...");

        }else {//验证失败
            System.out.println("支付, 验签失败...");
        }

        return "success";
    }

}
